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thyroid pregnancy

Kris Poppe, Candice Autin, Flora Veltri, Pierre Kleynen, Lidia Grabczan, Serge Rozenberg, Lieveke Ameye
Background: Since 2010, three meta-analyses have been published on the impact of thyroid autoimmunity (TAI) on pregnancy outcomes in infertile women treated with assisted reproductive technology (ART). The initially observed high risk of miscarriage became very low in the most recent meta-analysis published in 2016. Objective: To investigate whether the lower risk of miscarriage in the latest meta-analysis was associated with the increased use of intracytoplasmic sperm injection (ICSI) in recent studies...
March 12, 2018: Journal of Clinical Endocrinology and Metabolism
Jin Yang, Yang Liu, Hongjie Liu, Heming Zheng, Xiaofeng Li, Lin Zhu, Zhe Wang
OBJECTIVE: The study aimed to explore the effects of maternal iodine status and thyroid diseases on adverse pregnancy outcomes. METHODS: A prospective study was conducted on 2347 pregnant women, who provided 2347 urinary samples tested for iodine, 1082 serum samples tested for thyroid function, and 2347 questionnaires about demographic information. Their pregnancy outcomes were recorded and compared between different urinary iodine concentration (UIC) and thyroid function groups...
May 2018: Journal of Trace Elements in Medicine and Biology
Tatjana Barišić, Vjekoslav Mandić, Anja Vasilj, Dejan Tiric
OBJECTIVE: To determine the frequency of subclinical hypothyroidism in women with pathological pregnancies and the association between elevated thyroid-stimulating hormone (TSH) and pregnancy outcome. SUBJECTS AND METHODS: A cross-sectional prospective study investigated value of TSH and free thyroxine (FT4) in: 1. pregnant women with hypertension (HTA) (N = 62) or preeclampsia (PE) (N = 50), 2.women with gestational diabetes mellitus (GDM) (N = 92) in pregnancy and 3...
March 14, 2018: Journal of Maternal-fetal & Neonatal Medicine
F Popescu, C R Jaslow, W H Kutteh
STUDY QUESTION: Will the addition of 24-chromosome microarray analysis on miscarriage tissue combined with the standard American Society for Reproductive Medicine (ASRM) evaluation for recurrent miscarriage explain most losses? SUMMARY ANSWER: Over 90% of patients with recurrent pregnancy loss (RPL) will have a probable or definitive cause identified when combining genetic testing on miscarriage tissue with the standard ASRM evaluation for recurrent miscarriage...
March 12, 2018: Human Reproduction
Bharti Kalra, Meenu Choudhary, Meenakshi Thakral, Sanjay Kalra
Background: Hypothyroidism is common in pregnancy. No study has determined the prevalence of hypothyroidism in term pregnancies in India. Aim: This study aims to determine the prevalence and correlates of hypothyroidism in women who delivered at a center in Karnal, Haryana, North India. Results: Indoor records of all women who had delivered at this centre from April 2016 to March 2017 were reviewed. The prevalence of hypothyroidism was 12...
January 2018: Indian Journal of Endocrinology and Metabolism
Subramanian Kannan, Shriraam Mahadevan, Alben Sigamani
Background: Small cross-sectional studies are published on the trimester-specific normal ranges of thyrotropin and thyroxine levels in Indian women from various parts of the country. Objective: We sought to review the published literature on thyroid function tests in normal pregnant Indian women to see if the pooled data from various studies can define normative data and hypothyroidism in pregnancy. Methods: We retrieved 56 studies from online databases with detailed search using multiple search terms...
January 2018: Indian Journal of Endocrinology and Metabolism
Chiara Tuccilli, Enke Baldini, Elia Truppa, Bruno D'Auria, Domenico De Quattro, Giovanni Cacciola, Tommaso Aceti, Giovanni Cirillo, Antonio Faiola, Patrizia Indigeno, Lorella D'Aliesio, Fiorella Gazzellone, Marco Bononi, Eleonora D'Armiento, Giovanni Carbotta, Daniele Pironi, Antonio Catania, Salvatore Sorrenti, Salvatore Ulisse
OBJECTIVE: The World Health Organization, the United Nations Children's Fund, and the International Council for the Control of Iodine Deficiency Disorders recommend a median urinary iodine concentration (UIC) in pregnant women between 150 µg/L and 249 µg/L. In the present study, we evaluated whether in the urban area of Cassino (central Italy), after a national salt iodination program (30 mg/kg) was introduced in 2005, the increased demand of iodine during pregnancy was satisfied...
November 27, 2017: Nutrition
Ronit Koren, Yifat Wiener, Karen Or, Carlos A Benbassat, Shlomit Koren
OBJECTIVES: To study the current practices in the management of subclinical hypothyroidism (SCH) and thyroid nodules during pregnancy of obstetricians/gynecologists (OB/GYNs) and endocrinologists in Israel. METHODS: An electronic questionnaire was sent by email to all members of the Israeli Endocrine Society and the Israel Society of Obstetrics and Gynecology. Questionnaires included demographic data and clinical scenarios with questions regarding the screening and management of pregnant women with SCH, hypothyroxinemia, and a palpable thyroid nodule...
March 2018: Israel Medical Association Journal: IMAJ
Michiko Wada, Makoto Kita, Kaoru Kawasaki, Toru Kusakabe, Tetsuya Tagami, Noriko Satoh-Asahara, Akira Shimatsu, Koshi Hashimoto
Maternal Graves' disease (GD) during pregnancy may influence thyroid function in fetuses. Neonates born to mothers with high serum TSH receptor antibody (TRAb) levels have been reported to develop 'neonatal GD'. Therefore, evaluations of serum thyroid hormone and TRAb levels in neonates upon birth are crucial for a prompt diagnosis. At delivery, we measured TRAb with third-generation TRAb test using an M22 human monoclonal antibody in neonates by collecting umbilical cord blood in a blood collection tube with lithium-heparin, which provides a whole blood/plasma sample...
March 10, 2018: Endocrine Journal
Zahra Bahadoran, Parvin Mirmiran, Fereidoun Azizi, Asghar Ghasemi
Inorganic nitrate (NO3 ) due to its potential endogenous conversion to nitric oxide (NO), is suggested as a compensatory fuel for disrupted NO pathways in the case of pathological stats during pregnancy. Dietary NO3 -rich supplement in the NO-deficient pregnant women is now suggested as a more appealing choice with fewer off-target effects which can attenuate hypertension and preeclampsia, improve placental blood flow and subsequently enhance maternal and neonatal health. There is also an increasing public interest and common health claims regarding beneficial effects of NO3 -rich dietary supplements like beetroot byproducts in pregnant women...
January 2018: Pregnancy Hypertension
Anna Simone Frank, Angela Lupattelli, Hedvig Nordeng
INTRODUCTION: Approximately 3% to 5% of pregnant women have hypothyroidism. Despite the potential impact of untreated hypothyroidism on infant neurodevelopment, few studies have investigated the risk factors associated with discontinuation of thyroid hormone replacement therapy (THRT) in pregnancy. We aimed to identify such factors in a population of women using THRT prior to pregnancy. MATERIAL AND METHODS: Data from the Norwegian Mother and Child Cohort Study were linked to records in the Medical Birth Registry of Norway...
March 7, 2018: Acta Obstetricia et Gynecologica Scandinavica
Caroline T Nguyen, Elizabeth B Sasso, Lorayne Barton, Jorge H Mestman
Background: Graves' hyperthyroidism affects 0.2% of pregnant women. Establishing the correct diagnosis and effectively managing Graves' hyperthyroidism in pregnancy remains a challenge for physicians. Main: The goal of this paper is to review the diagnosis and management of Graves' hyperthyroidism in pregnancy. The paper will discuss preconception counseling, etiologies of hyperthyroidism, thyroid function testing, pregnancy-related complications, maternal management, including thyroid storm, anti-thyroid drugs and the complications for mother and fetus, fetal and neonatal thyroid function, neonatal management, and maternal post-partum management...
2018: Clinical Diabetes and Endocrinology
Yan Han, Lei-Jing Mao, Xing Ge, Kun Huang, Shuang-Qin Yan, Ling-Ling Ren, Shu-Qing Hong, Hui Gao, Jie Sheng, Yuan-Yuan Xu, Wei-Jun Pan, Peng Zhu, Jia-Hu Hao, De-Fa Zhu, Fang-Biao Tao
OBJECTIVE: Hypertensive disorders of pregnancy (HDP) have been associated with adverse health outcomes for both mothers and children. Previous studies examining associations of maternal thyroid autoantibodies with HDP indicate conflicting results. The objective of this study was to examine associations of maternal thyroid autoantibodies positivity in the first and the second trimesters with the risk of HDP. DESIGN, PARTICIPANTS AND MEASUREMENTS: In the Ma'anshan Birth Cohort study, a population-based prospective study in China, a total of 3474 pregnant women were enrolled between May 2013 and September 2014...
March 5, 2018: Clinical Endocrinology
Taylor Etzel, Gina Muckle, Tye E Arbuckle, William D Fraser, Emmanuel Ouellet, Jean R Séguin, Bruce Lanphear, Joseph M Braun
BACKGROUND: Exposure to triclosan, an antimicrobial chemical, is ubiquitous among pregnant women and may reduce thyroid hormone levels that are important for fetal neurodevelopment. Few studies have examined the association between prenatal triclosan exposure and children's neurobehavior. OBJECTIVE: We investigated the relationship of prenatal urinary triclosan concentrations with children's behavior and cognitive abilities at age three years in a prospective pregnancy and birth cohort in Canada...
March 1, 2018: Environment International
Juliane Leger, Anne Forhan, Sophie Dos Santos, Beatrice Larroque, Emmanuel Ecosse, Marie Aline Charles, Barbara Heude
OBJECTIVE: Maternal thyroid dysfunction during pregnancy is associated with neurodevelopmental impairment in the offspring. No data are currently available for the offspring of patients treated early for congenital hypothyroidism(CH). The aim of this study was to investigate motor and language milestones at one year of age in a population-based registry of children born to young women with CH. DESIGN AND METHODS: We assessed 110 children born to mothers with CH, and 1367 children from the EDEN French population-based birth cohort study prospectively, at the age of one year, with identical questionnaires...
March 2, 2018: European Journal of Endocrinology
Kriti Joshi, Margaret Zacharin
BACKGROUND: Neonatal hyperthyroidism is rare, seen in infants of mothers with Graves' disease (GD), with transplacental transfer of thyroid-stimulating hormone receptor (TSHR) antibodies (TRAbs). We describe a neonate with severe hyperthyroidism due to TRAbs, born to a mother with autoimmune hypothyroidism. CASE PRESENTATION: A baby boy born preterm at 35 weeks had irritability, tachycardia and proptosis after birth. The mother had autoimmune hypothyroidism, from age 10, with thyroxine replacement and normal thyroid function throughout her pregnancy...
March 1, 2018: Journal of Pediatric Endocrinology & Metabolism: JPEM
Emma V Preston, Thomas F Webster, Emily Oken, Birgit Claus Henn, Michael D McClean, Sheryl L Rifas-Shiman, Elizabeth N Pearce, Lewis E Braverman, Antonia M Calafat, Xiaoyun Ye, Sharon K Sagiv
BACKGROUND: Prenatal exposure to some per- and polyfluoroalkyl substances (PFASs) may disrupt maternal and neonatal thyroid function, which is critical for normal growth and neurodevelopment. OBJECTIVES: We examined associations of PFAS exposure during early pregnancy with maternal and neonatal thyroid hormone levels. METHODS: We studied 732 mothers and 480 neonates in Project Viva, a longitudinal prebirth cohort in Boston, Massachusetts. We quantified six PFASs, including perfluorooctanoic acid (PFOA) and perfluorooctane sulfonate (PFOS), and maternal thyroid hormones [thyroxine (T4 ), Free T4 Index (FT4 I), thyroid stimulating hormone (TSH)] in plasma samples collected at a median 9...
February 27, 2018: Environmental Health Perspectives
Fatemeh Bagheripuor, Mahboubeh Ghanbari, Abass Piryaei, Asghar Ghasemi
NEW FINDINGS: What is the central question of this study? Does fetal hypothyroidism in rats alter uterine contractions and structure in the adult offspring? What is the main finding and its importance? Our study indicated that maternal hypothyroidism during pregnancy increased gestational length and decreased litter size as well as delayed puberty onset; in addition, maternal hypothyroidism caused irregular uterine contractions and histological changes in the uterus in the female offspring...
February 27, 2018: Experimental Physiology
Alexandra Miranda, Nuno Sousa
An adverse maternal hormonal environment during pregnancy can be associated with abnormal brain growth. Subtle changes in fetal brain development have been observed even for maternal hormone levels within the currently accepted physiologic ranges. In this review, we provide an update of the research data on maternal hormonal impact on fetal neurodevelopment, giving particular emphasis to thyroid hormones and glucocorticoids. Thyroid hormones are required for normal brain development. Despite serum TSH appearing to be the most accurate indicator of thyroid function in pregnancy, maternal serum free T4 levels in the first trimester of pregnancy are the major determinant of postnatal psychomotor development...
February 2018: Brain and Behavior
Rebecca Troisi, Tone Bjørge, Mika Gissler, Tom Grotmol, Cari M Kitahara, Solbjørg Makalani Myrtveit Saether, Anne Gulbech Ording, Camilla Sköld, Henrik Toft Sørensen, Britton Trabert, Ingrid Glimelius
An understanding of the origin of cancer is critical for cancer prevention and treatment. Complex biological mechanisms promote carcinogenesis, and there is increasing evidence that pregnancy-related exposures influence fetal growth cell division and organ functioning and may have a long-lasting impact on health and disease susceptibility in the mothers and offspring. Nulliparity is an established risk factor for breast, ovarian, endometrial, and possibly pancreatic cancer, while the risk of kidney cancer is elevated in parous compared with nulliparous women...
February 24, 2018: Journal of Internal Medicine
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